The effect of high concentration of selected calcium salts on development of microcuttings of rhododendron R. Catawbiense Grandiflorum in in vitro cultures
2002
Giel, P. | Bojarczuk, K.
High content of calcium compounds in soil limits cultivation possibilities of the majority of cultivars of rhododendron. In the research presented an attempt was made to determine the influence of a high level of calcium salts, pH and an increased level of auxins in a medium, on the development of microcuttings of R. Catawbiense Grandiflorum. On the basis of the results of the research it is justifiable to state that it was the anions of some salts used that had an adverse effect on the development of rhododendron cultures, not calcium cations. Significant differences were noted in the uptake of calcium, magnesium and sodium ions by the microcuttings depending on salts used in the media. The pH value of the medium higher optimum significantly affected the degree of chlorosis of the microcuttings analysed
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